Door-opener



(NdModL) MpL. POWELL.

-D0011 OPELTER. No. 276.626. Patented May 1,1883.

E yl. 2,

a I d (5 W NT R mm 06 oflwdzf N. PETERS. mom-1 m, Wuhlnnm D. c.

UNITED STATES PATENT OFFICE.

MARTIN L. POWELL, OF NEW CASTLE, INDIANA.

DOOR-OPENER.

SPEGIFICATTONforming .part of Letters Patent No. 276,626, dated May 11883.

Application filed January 6, 1883. (No model.)

' To all whom it may concern Be it known that I, MARTIN L. POWELL, a

. citizen of the United Stat s, and a resident of New Castle, in thecounty 1' Henry and State elevation.

Like letters indicate the same parts.

The mechanism for opening the door is designed to be mainly concealed inthe partitjgp, and, as shown in Fig. 1,is attached to the door jamb a. Ab'nt lever, I), having a vertical arm, 0, standing behind the casing atof a door, and a horizontal arm, 6, which projects through the casing,is fulcrumed at f to a plate, g, secured to the door-jamb. Secured tothe vertical arm of lever b isa fiat spring, h, which engagesa notchinasliding bolt, 2'. Said sliding bolt projects through the casing, andits end rests against the latchj of the door. A vertical sliding bar,It, is secured to the casing of the door in such a position that itsupper end rests against the lower edge of the latch. Bar 7c is connectedat its lower end with a short lever, l, which has its fulcrum at m. iThe other end of leverl is connected to the horizontal arm of lever b byrod 11.. A second bent lever, 0, is also fulcrumed on plate g, and isconnected with lever b,below its fulcrum, by a short rod or link, 1).

The operation of my device is as follows:

The door being closed, a person approaching it places the foot on thehorizontal arm a of lever b, or on lever 0, applying theweight of thebody thereto, and thus depressing the lever. 5 As the lever is depressedspring his put in tension and sliding bolt t is forced against the latchj. At the sametime vertical bark is forced upward against the latch, andthe latch is raised out of the catch-plate 1", and the door 0 beingreleasedis pushed open by the recoil of spring h, operatiugagaiust thelatch through sliding bolt t. The foot of the person having been removedthe levers and sliding bolts are returned to their normal position byaspring, s." 5

I claim as my invention- 1. The combination, with a door-latch securedto a door, of a bent lever adapted to be depressed by a personapproaching the door,

and means, substantially such as described, for

causi g weight, when applied to said lever, to

exert simultaneously an upward and an outard pressure against thelatch,substantially as and for the purpose set forth.

2. The combination, with a door-latch secured to a door, of a bent leveradapted to be depressed by a person approaching the door, and means,substantially such as described, for causing weight, when applied tosaid lever, to

exert simultaneously a positive upward press ure and a yielding outwardpressure against the latch, substantially as and for the purpose setforth.

3. The combination, with a door'latch secured to a door, of sliding bolti, spring 8, bent lever 1), spring h, vertical bar It, lever m, and rodat, substantially as shown and described, for the purpose specified.

MARTIN L. POWELL.

Witnesses:

J OSEPH M. BROWN, MARK STRETCH.

